======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '254'
                                          'artist'  "B52's"
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Love Shack'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-3']")
                                      'lastfmtags'  "['new wave', '80s', 'pop', 'alternative', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '133.756'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TBPM' (BPM (beats per minute))                     '133.756'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TIT2' (Title/songname/content description)         'Love Shack'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               "B52's"
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['new wave', '80s', 'pop', 'alternative', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.46 dB'
'TXXX:replaygain_track_peak'                        '0.478839'

========================== row from database ==========================
                                              'id'  1509019
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/B52_s - Love Shack.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  254
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  4077453
                                           'mtime'  1620558357
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat B52_s electronic generic or radio dance
                                      'tag_artist'  B52's
                                     'tag_release'  None
                                       'tag_title'  Love Shack
                                             'bpm'  133.756
                                    'search_title'  'love':1 'shack':2
                                   'search_artist'  'b52':1 'b52s':3 's':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'b52':5 'dance':3 'electronic':7 'generic':2 'or':8 'radio':9 's':6 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':6 'b52':3B,10 'b52s':5B 'dance':8 'electronic':12 'generic':7 'love':1A 'or':13 'radio':14 's':4B,11 'shack':2A 'trapbeat':9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['new wave', '80s', 'pop', 'alternative', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620558356.8638904  (2021-05-09 13:05:56)
                             'size'  4077453